verify

I switched my rims to 20s inches and the TPMS didn't turn on...so the tire guy told me that the 2014 mazda 3 TPMS is the same as BMW ,that they use infrared TPMS. They even take the tire off the factory wheel to find the TPMS, but there was nothing. I been driving around on my 20s for 2 weeks...

Sorry if this is the wrong section for this thread, but I didn't know where else to post it!
I just wanted to make sure my understanding of how the warranty works is correct: that if (for example) I got aftermarket lowering springs (along with new struts) and my transmission died, my...